To provide a tension balancer measuring the maximum expansion/contraction amount of an electric car wire, and improving the accuracy of state management of the electric car wire.SOLUTION: An electric car wire W is supported on a structure by an almost constant tensile force by fastening a frame 7 to an upper edge lid 3 of a cylindrical spring case 2, pivotably attaching a rotation arm 8 to the frame 7, and connecting a tension rod 10 coupled with the coil spring 13 and the electric car wire W to the rotation arm 8. An indicator 22 indicates an expansion/contraction amount of the electric car wire W onto a scale 23a by showing the deviation of a reference position of the rotation arm 8 in accordance with the expansion/contraction of the electric car wire W. The indicator 22 is equipped with: a pointer 24 fixed to the reference position of the rotation arm 8; a scale plate 23 fixed to the frame 7, and having the scale 23a indicated by the pointer 24 deviated together with the rotation arm 8; and holding needles 25, 26 pushed by the pointer 24 and held so as to be movable on the scale plate 23, and showing the maximum deviation of the pointer by indicating the scale in a static position of a moving end of the pointer.SELECTED DRAWING: Figure 1

    【課題】 電車線の最大伸縮量を測定し、電車線の状態管理の精度を向上させるテンションバランサを提供する。【解決手段】 円筒状のばねケース2の上端蓋3にフレーム7を固着し、このフレーム7に回転アーム8を枢着し、コイルばね13に連結するテンションロッド10及び電車線Wを回転アーム8に接続して、電車線Wをほぼ一定の張力で構築物に支持するように構成する。インジケータ22は、電車線Wの伸縮に伴う回転アーム8の基準位置の変位を表すことにより電車線Wの伸縮量を目盛23aに指示する。インジケータ22は、回転アーム8の基準位置に固定された指針24と、フレーム7に固定され、回転アーム8と共に変位する指針24が指示する目盛23aを有する目盛板23と、指針24に押されて目盛板23上を移動可能に保持され、指針の移動端の静止位置において目盛を指示することにより指針の最大変位を表す保持針25,26とを具備させる。【選択図】図1


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    Title :

    TENSION BALANCER OF ELECTRIC CAR WIRE


    Additional title:

    電車線のテンションバランサ


    Contributors:

    Publication date :

    2019-09-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES



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